| 1. |
- Akıner, İ., et al.
(författare)
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The memetic evolution of latin american architectural design culture
- 2021
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Ingår i: Buildings. - : MDPI. - 2075-5309. ; 11:7
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Tidskriftsartikel (refereegranskat)abstract
- Architecture is an evolutionary field. Through time, it changes and adapts itself according to two things: the environment and the user, which are the touchstones of the concept of culture. Culture changes in long time intervals because of its cumulative structure, so its effects can be observed on a large scale. A nation displays itself with its culture and uses architecture as a tool to convey its cultural identity. This dual relationship between architecture and culture can be observed at various times and in various lands, most notably in Latin American designers. The geographical positions of Latin American nations and their political situations in the twentieth century leads to the occurrence of a recognizable cultural identity, and it influenced the architectural design language of that region. The nonlinear forms in architecture were once experienced commonly around Latin America, and this design expression shows itself in the designers’ other works through time and around the world. The cultural background of Latin American architecture investigated within this study, in terms of their design approach based upon the form and effect of Latin American culture on this architectural design language, is examined with the explanation of the concept of culture by two leading scholars: Geert Hofstede and Richard Dawkins. This paper nevertheless puts together architecture and semiology by considering key twentieth century philosophers and cultural theorist methodologies. Cultural theorist and analyst Roland Barthes was the first person to ask architects to examine the possibility of bringing semiology and architectural theory together. Following an overview of existing semiological conditions, this paper analyzed Roland Barthes and Umberto Eco’s hypothesis of the semiological language of architectural designs of Latin American designers by examining their cultural origin. The work’s findings express the historical conditions that enabled the contemporary architecture and culture study of Latin America between 1945 and 1975 to address the “Latin American model” of architectural modernism.
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| 2. |
- Akıner, M. E., et al.
(författare)
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Predicting the critical organizational behavior and culture of the Turkish construction industry's occupational groups for determining the success of the construction business
- 2024
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Ingår i: Heliyon. - : Elsevier. - 2405-8440. ; 10:12
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Tidskriftsartikel (refereegranskat)abstract
- Organizational culture is connected to people's capacity to organize themselves internally and adapt to the outside environment. Contracting companies were asked to complete a questionnaire based on organizational culture characteristics. This study intends to make a substantial theoretical contribution by demonstrating a broader perspective on exposing the essential cultural features using a quantitative approach with the fewest possible questions. Exploratory factor analysis and Principal Component Analysis were used to identify the most critical variables and extract a more manageable number of components from multiple related variables. Twenty-eight variables were reduced to thirteen to eliminate statistical cross-loading. Furthermore, the organizational culture was simplified from eight to three dimensions. Thirteen factors were created based on cultural habits in the construction sector, with three inclusive dimensions: multiple motivational, one–bipolar, and many bipolar. This study provides a more succinct survey that quantifies cultural habits and their influence on sectoral performance.
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| 3. |
- Algan, Tezel, et al.
(författare)
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Insights into Blockchain Implementation in Construction : Models for Supply Chain Management
- 2021
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Ingår i: Journal of Management in Engineering. - : American Society of Civil Engineers (ASCE). - 0742-597X .- 1943-5479. ; 37:4
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Tidskriftsartikel (refereegranskat)abstract
- The interest in the implementation of distributed ledger technologies (DLTs) is on the rise in the construction sector. One specific type of DLT that has recently attracted much attention is blockchain. Blockchain has been mostly discussed conceptually for construction to date. This study presents some empirical discussions on supply chain management (SCM) applications of blockchain for construction by collecting feedback for three blockchain-based models: project bank accounts (PBAs) for payments, reverse auction–based tendering for bidding, and asset tokenization for project financing. The feedback was collected from three focus groups and a workshop. The working prototypes for the models were developed on Ethereum. The implementation of blockchain in payment arrangements was found to be simpler than in tendering and project tokenization workflows. However, the blockchain integration of those workflows may have large-scale impacts on the sector in the future. A broad set of general and model-specific benefits/opportunities and requirements/challenges was also identified for blockchain in construction. Some of these include streamlined, transparent transactions and rational trust building, and the need for challenging the sector culture, upscaling the legacy information technology (IT) systems, and compliance with the regulatory structures.
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| 4. |
- Alizadehsalehi, Sepehr, et al.
(författare)
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Digital twin-based progress monitoring management model through reality capture to extended reality technologies (DRX)
- 2023
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Ingår i: Smart and Sustainable Built Environment. - : Emerald Group Publishing Limited. - 2046-6099 .- 2046-6102. ; 12:1, s. 200-236
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Tidskriftsartikel (refereegranskat)abstract
- Purpose The purpose of this research is to develop a generic framework of a digital twin (DT)-based automated construction progress monitoring through reality capture to extended reality (RC-to-XR).Design/methodology/approach IDEF0 data modeling method has been designed to establish an integration of reality capturing technologies by using BIM, DTs and XR for automated construction progress monitoring. Structural equation modeling (SEM) method has been used to test the proposed hypotheses and develop the skill model to examine the reliability, validity and contribution of the framework to understand the DRX model's effectiveness if implemented in real practice.Findings The research findings validate the positive impact and importance of utilizing technology integration in a logical framework such as DRX, which provides trustable, real-time, transparent and digital construction progress monitoring.Practical implications DRX system captures accurate, real-time and comprehensive data at construction stage, analyses data and information precisely and quickly, visualizes information and reports in a real scale environment, facilitates information flows and communication, learns from itself, historical data and accessible online data to predict future actions, provides semantic and digitalize construction information with analytical capabilities and optimizes decision-making process.Originality/value The research presents a framework of an automated construction progress monitoring system that integrates BIM, various reality capturing technologies, DT and XR technologies (VR, AR and MR), arraying the steps on how these technologies work collaboratively to create, capture, generate, analyze, manage and visualize construction progress data, information and reports.
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| 5. |
- Alizadehsalehi, Sepehr, et al.
(författare)
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The effectiveness of an integrated BIM/UAV model in managing safety on construction sites
- 2020
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Ingår i: International Journal of Occupational Safety and Ergonomics. - : Taylor & Francis. - 1080-3548 .- 2376-9130. ; 26:4, s. 829-844
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Tidskriftsartikel (refereegranskat)abstract
- Introduction. A variety of approaches exist to achieve better construction safety performance, but only a few consider a combination of building information modeling (BIM) and unmanned aerial vehicles (UAVs).Method. This article presents a four-dimensional (4D) BIM/UAV-enabled safety management model based on IDEF0 language. In the first step, potential hazards are identified with the help of safety specialists’ experiences and BIM software used in the design of the structure. Then, a UAV monitors the location of the potential hazards. The third step involves the integration of the 4D BIM-based model and the information obtained from the UAV. Finally, the combined data are analyzed and interpreted, and site safety staff are notified about measures to be put in place to prevent accidents.Results. This model shows a strong relationship between the design and construction phases by using BIM in the design phase and UAVs in the construction phase. The proposed safety model was evaluated by construction safety specialists in a two-pronged approach.Conclusion. The number of fatal, non-fatal and property damage-causing accidents may be significantly lower when the proposed system was used.Practical application. This model allows safety specialists to identify hazards and develop suitable mitigation strategies.
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| 6. |
- Almusaed, Amjad, 1967-, et al.
(författare)
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Architectural Reply for Smart Building Design Concepts Based on Artificial Intelligence Simulation Models and Digital Twins
- 2023
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Ingår i: Sustainability. - : MDPI. - 2071-1050. ; 15:6
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Tidskriftsartikel (refereegranskat)abstract
- Artificial Intelligence (AI) simulation models and digital twins (DT) are used in designingand treating the activities, layout, and functions for the new generation of buildings to enhanceuser experience and optimize building performance. These models use data about a building’s use,configuration, functions, and environment to simulate different design options and predict theireffects on house function efficiency, comfort, and safety. On the one hand, AI algorithms are usedto analyze this data and find patterns and trends that can guide the design process. On the otherhand, DTs are digital recreations of actual structures that can replicate building performance in realtime. These models would evaluate alternative design options, the performance of the building, andways to improve user comfort and building efficiency. This study examined the important role ofintelligent building design aspects, such as activities using multi-layout and the creation of particularfunctions based on AI simulation models, in developing DT-based smart building systems. Theempirical data came from a study of architecture and engineering firms throughout the globe usinga CSAQ (computer-administered, self-completed survey). For this purpose, the study employedstructural equation modeling (SEM) to examine the hypotheses and build the relationship model. Theresearch verifies the relevance of AI-based simulation models supporting the creation of intelligentbuilding design features (activities, layout, functionalities), enabling the construction of DT-basedsmart building systems. Furthermore, this study highlights the need for further exploration ofAI-based simulation models’ role and integration with DT in smart building design.
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| 7. |
- Almusaed, Amjad, et al.
(författare)
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Assessing the Impact of Recycled Building Materials on Environmental Sustainability and Energy Efficiency : A Comprehensive Framework for Reducing Greenhouse Gas Emissions
- 2024
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Ingår i: Buildings. - : MDPI. - 2075-5309. ; 14:6
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Tidskriftsartikel (refereegranskat)abstract
- In this study, we critically examine the potential of recycled construction materials, focusing on how these materials can significantly reduce greenhouse gas (GHG) emissions and energy usage in the construction sector. By adopting an integrated approach that combines Life Cycle Assessment (LCA) and Material Flow Analysis (MFA) within the circular economy framework, we thoroughly examine the lifecycle environmental performance of these materials. Our findings reveal a promising future where incorporating recycled materials in construction can significantly lower GHG emissions and conserve energy. This underscores their crucial role in advancing sustainable construction practices. Moreover, our study emphasizes the need for robust regulatory frameworks and technological innovations to enhance the adoption of environmentally responsible practices. We encourage policymakers, industry stakeholders, and the academic community to collaborate and promote the adoption of a circular economy strategy in the building sector. Our research contributes to the ongoing discussion on sustainable construction, offering evidence-based insights that can inform future policies and initiatives to improve environmental stewardship in the construction industry. This study aligns with the European Union's objectives of achieving climate-neutral cities by 2030 and the United Nations' Sustainable Development Goals outlined for completion by 2030. Overall, this paper contributes to the ongoing dialogue on sustainable construction, providing a fact-driven basis for future policy and initiatives to enhance environmental stewardship in the industry.
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| 8. |
- Almusaed, Amjad, 1967-, et al.
(författare)
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Assessing the Role and Efficiency of Thermal Insulation by the "BIO-GREEN PANEL" in Enhancing Sustainability in a Built Environment
- 2023
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Ingår i: Sustainability. - : MDPI. - 2071-1050. ; 15:13
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Tidskriftsartikel (refereegranskat)abstract
- The pressing concern of climate change and the imperative to mitigate CO2 emissions have significantly influenced the selection of outdoor plant species. Consequently, evaluating CO2's environmental effects on plants has become integral to the decision-making process. Notably, reducing greenhouse gas (GHG) emissions from buildings is significant in tackling the consequences of climate change and addressing energy deficiencies. This article presents a novel approach by introducing plant panels as an integral component in future building designs, epitomizing the next generation of sustainable structures and offering a new and sustainable building solution. The integration of environmentally friendly building materials enhances buildings' indoor environments. Consequently, it becomes crucial to analyze manufacturing processes in order to reduce energy consumption, minimize waste generation, and incorporate green technologies. In this context, experimentation was conducted on six distinct plant species, revealing that the energy-saving potential of different plant types on buildings varies significantly. This finding contributes to the economy's improvement and fosters enhanced health-related and environmental responsibility. The proposed plant panels harmonize various building components and embody a strategic approach to promote health and well-being through bio-innovation. Furthermore, this innovative solution seeks to provide a sustainable alternative by addressing the challenges of unsustainable practices, outdated standards, limited implementation of new technologies, and excessive administrative barriers in the construction industry. The obtained outcomes will provide stakeholders within the building sector with pertinent data concerning performance and durability. Furthermore, these results will enable producers to acquire essential information, facilitating product improvement.
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| 9. |
- Almusaed, Amjad, 1967-, et al.
(författare)
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Coherent investigation on a smart kinetic wooden façade based on material passport concepts and environmental profile inquiry
- 2021
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Ingår i: Materials. - : MDPI. - 1996-1944. ; 14:14
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Tidskriftsartikel (refereegranskat)abstract
- Wood is one of the most fully renewable building materials, so wood instead of non-renewable materials produced from organic energy sources significantly reduces the environmental impact. Construction products can be replenished at the end of their working life and their elements and components deconstructed in a closed-loop manner to act as a material for potential construction. Materials passports (MPs) are instruments for incorporating circular economy principles (CEP) into structures. Material passports (MPs) consider all the building’s life cycle (BLC) steps to ensure that it can be reused and transformed several times. The number of reuse times and the operating life of the commodity greatly influence the environmental effects incorporated. For a new generation of buildings, the developing of an elegant kinetic wooden façade has become a necessity. It represents a multidisciplinary region with different climatic, fiscal, constructional materials, equipment, and programs, and ecology-influencing design processes and decisions. Based on an overview of the material’s environmental profile (MEP) and material passport (MP) definition in the design phase, this article attempts to establish and formulate an analytical analysis of the wood selection process used to produce a kinetic façade. The paper will analyze the importance of environmentally sustainable construction and a harmonious architectural environment to reduce harmful human intervention on the environment. It will examine the use of wooden panels on buildings’ façades as one solution to building impact on the environment. It will show the features of the formation of the wooden exterior of the building. It will also examine modern architecture that enters into a dialogue with the environment, giving unique flexibility to adapt a building. The study finds that new buildings can be easily created today. The concept of building materials passport and the environmental selection of the kinetic wooden façade can be incorporated into the building design process. This will improve the economic and environmental impact of the building on human life.
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| 10. |
- Almusaed, Amjad, 1967-, et al.
(författare)
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Enhancing Smart Home Design with AI Models : A Case Study of Living Spaces Implementation Review
- 2023
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Ingår i: Energies. - : MDPI. - 1996-1073. ; 16:6
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Forskningsöversikt (refereegranskat)abstract
- The normal development of "smart buildings," which calls for integrating sensors, rich data, and artificial intelligence (AI) simulation models, promises to usher in a new era of architectural concepts. AI simulation models can improve home functions and users' comfort and significantly cut energy consumption through better control, increased reliability, and automation. This article highlights the potential of using artificial intelligence (AI) models to improve the design and functionality of smart houses, especially in implementing living spaces. This case study provides examples of how artificial intelligence can be embedded in smart homes to improve user experience and optimize energy efficiency. Next, the article will explore and thoroughly analyze the thorough analysis of current research on the use of artificial intelligence (AI) technology in smart homes using a variety of innovative ideas, including smart interior design and a Smart Building System Framework based on digital twins (DT). Finally, the article explores the advantages of using AI models in smart homes, emphasizing living spaces. Through the case study, the theme seeks to provide ideas on how AI can be effectively embedded in smart homes to improve functionality, convenience, and energy efficiency. The overarching goal is to harness the potential of artificial intelligence by transforming how we live in our homes and improving our quality of life. The article concludes by discussing the unresolved issues and potential future research areas on the usage of AI in smart houses. Incorporating AI technology into smart homes benefits homeowners, providing excellent safety and convenience and increased energy efficiency.
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| 11. |
- Almusaed, Amjad, 1967-, et al.
(författare)
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Enhancing Student Engagement : Harnessing "AIED"'s Power in Hybrid Education-A Review Analysis
- 2023
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Ingår i: Education Sciences. - : MDPI. - 2227-7102. ; 13:7
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Forskningsöversikt (refereegranskat)abstract
- Hybrid learning is a complex combination of face-to-face and online learning. This model combines the use of multimedia materials with traditional classroom work. Virtual hybrid learning is employed alongside face-to-face methods. That aims to investigate using Artificial Intelligence (AI) to increase student engagement in hybrid learning settings. Educators are confronted with contemporary issues in maintaining their students' interest and motivation as the popularity of online and hybrid education continues to grow, where many educational institutions are adopting this model due to its flexibility, student-teacher engagement, and peer-to-peer interaction. AI will help students communicate, collaborate, and receive real-time feedback, all of which are challenges in education. This article examines the advantages and disadvantages of hybrid education and the optimal approaches for incorporating Artificial Intelligence (AI) in educational settings. The research findings suggest that using AI can revolutionize hybrid education, as it enhances both student and instructor autonomy while fostering a more engaging and interactive learning environment.
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| 12. |
- Almusaed, Amjad, et al.
(författare)
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Environmental profile on building material passports for hot climates
- 2020
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Ingår i: Sustainability. - : MDPI. - 2071-1050. ; 12:9
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Tidskriftsartikel (refereegranskat)abstract
- Vernacular building materials and models represent the construction methods and building materials used in a healthy manner. Local building materials such as gravel, sand, stone, and clay are used in their natural state or with minor processing and cleaning to mainly satisfy local household needs (production of concrete, mortar, ballast, silicate, and clay bricks and other products). In hot climates, the concept of natural building materials was used in a form that can currently be applied in different kinds of buildings. This concept depends on the proper consideration of the climate characteristics of the construction area. A material passport is a qualitative and quantitative documentation of the material composition of a building, displaying materials embedded in buildings as well as showing their recycling potential and environmental impact. This study will consider two usages of building materials. The first is the traditional use of building materials and their importance in the application of vernacular building strategies as an essential global bioclimatic method in sustainable architecture. The second is the affordable use of new building materials for their availability and utilization by a large part of society in a way to add more detail to research. The article aims to create an objective reading and analysis regarding specific building materials in order to generate a competent solution of materials that is suitable for building requirements in hot climates. This study evaluates the most suitable Building Material Passports needed in hot climates, where the environmental profile must be analyzed to confirm the use of natural materials.
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| 13. |
- Almusaed, Amjad, 1967-, et al.
(författare)
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Reviewing and Integrating AEC Practices into Industry 6.0 : Strategies for Smart and Sustainable Future-Built Environments
- 2023
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Ingår i: Sustainability. - Basel, Switzerland : MDPI. - 2071-1050. ; 15:18
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Tidskriftsartikel (refereegranskat)abstract
- This article explores the possible ramifications of incorporating ideas from AEC Industry 6.0 into the design and construction of intelligent, environmentally friendly, and long-lasting structures. This statement highlights the need to shift away from the current methods seen in the AEC Industry 5.0 to effectively respond to the increasing requirement for creative and environmentally sustainable infrastructures. Modern building techniques have been made more efficient and long-lasting because of AEC Industry 6.0’s cutting-edge equipment, cutting-edge digitalization, and ecologically concerned methods. The academic community has thoroughly dissected the many benefits of AEC Industry 5.0. Examples are increased stakeholder involvement, automation, robotics for optimization, decision structures based on data, and careful resource management. However, the difficulties of implementing AEC Industry 6.0 principles are laid bare in this research. It calls for skilled experts who are current on the latest technologies, coordinate the technical expertise of many stakeholders, orchestrate interoperable standards, and strengthen cybersecurity procedures. This study evaluates how well the principles of Industry 6.0 can create smart, long-lasting, and ecologically sound structures. The goal is to specify how these ideas may revolutionize the building industry. In addition, this research provides an in-depth analysis of how the AEC industry might best adopt AEC Industry 6.0, underscoring the sector-wide significance of this paradigm change. This study thoroughly analyzes AEC Industry 6.0 about big data analytics, the IoT, and collaborative robotics. To better understand the potential and potential pitfalls of incorporating AEC Industry 6.0 principles into the construction of buildings, this study examines the interaction between organizational dynamics, human actors, and robotic systems.
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| 14. |
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BIM-enabled cognitive computing for smart built environment : Potential, requirements, and implementation
- 2021
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Samlingsverk (redaktörskap) (refereegranskat)abstract
- The book provides knowledge in the Building Information Model (BIM)-enabled cognitive computing methods for smart built environment involving cognitive network capabilities for smart buildings, integrating Augmented Reality/Mixed Reality in cognitive building concepts, cognitive Internet of Things (CIoT) for smart cities, Artificial Intelligence applications for cognitive cities, and cognitive smart cities using big data and machine learning. It focuses on the potential, requirements and implementation of CIoT paradigm to buildings, Artificial Intelligence techniques, reasoning, and Augmented Reality/Mixed Reality in cognitive building concepts, the concept of cognitive smart cities in its complexity, heterogeneity, and scope, and the challenge of utilizing the big data generated by smart cities from a machine learning perspective. The book comprises BIM-based and data-analytic research on cognitive IoT for smart buildings and cognitive cities using big data and machine learning as complex and dynamic systems. It presents applied theoretical contributions fostering a better understanding of such systems and the synergistic relationships between the motivating physical and informational settings. It reviews ongoing development of BIM-based and data science technologies for the processing, analysis, management, modeling, and simulation of big and context data and the associated applicability to cognitive systems that will advance different aspects of future cognitive cities. The book also analyses the required material to inform pertinent research communities of the state-of-the-art research and the latest development in the area of cognitive smart cities development, as well as a valuable reference for planners, designers, strategists, and ICT experts who are working towards the development and implementation of CIoT based on big data analytics and context–aware computing.
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| 15. |
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Cognitive Digital Twins for Smart Lifecycle Management of Built Environment and Infrastructure : Challenges, Opportunities and Practices
- 2023
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Samlingsverk (redaktörskap) (refereegranskat)abstract
- This book provides knowledge into Cognitive Digital Twins for smart lifecycle management of built environment and infrastructure focusing on challenges and opportunities. It focuses on the challenges and opportunities of data-driven cognitive systems by integrating the heterogeneous data from multiple resources that can easily be used in a machine learning model and adjust the algorithms. It comprises Digital Twins incorporating cognitive features that will enable sensing complex and unpredicted behavior and reason about dynamic strategies for process optimization to support decision-making in lifecycle management of the built environment and infrastructure. The book introduces the Knowledge Graph (KG)-centric framework for Cognitive Digital Twins involving process modeling and simulation, ontology-based Knowledge Graph, analytics for process optimizations, and interfaces for data operability. It offers contributions of Cognitive Digital Twins for the integration of IoT, Big data, AI, smart sensors, machine learning and communication technologies, all connected to a novel paradigm of self-learning hybrid models with proactive cognitive capabilities. The book presents the topologies of models described for autonomous real time interpretation and decision-making support of complex system development based on Cognitive Digital Twins with applications in critical domains such as maintenance of complex engineering assets in built environment and infrastructure. It offers the essential material to enlighten pertinent research communities of the state-of-the-art research and the latest development in the area of Cognitive Digital Twins, as well as a valuable reference for planners, designers, developers, and ICT experts who are working towards the development and implementation of autonomous Cognitive IoT based on big data analytics and context–aware computing.
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| 16. |
- Erkul, Mehmet, et al.
(författare)
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Dynamics of stakeholder engagement in mega transport infrastructure projects
- 2020
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Ingår i: International Journal of Managing Projects in Business. - : Emerald Group Publishing Limited. - 1753-8378 .- 1753-8386. ; 13:7, s. 1465-1495
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Tidskriftsartikel (refereegranskat)abstract
- Purpose – The purpose of this paper is to investigate the practice of stakeholder engagement as a social network dynamics for stakeholder satisfaction and project success in the lifecycle of mega transport infrastructure projects (MTIPs).Design/methodology/approach – Hypotheses indicating the positive relationships between stakeholders’ effective attributes, stakeholder engagement as social network dynamics and project success through stakeholders’ satisfaction have been developed. Based on a questionnaire survey and semi-structured interviews, responses have been gathered from the representative groups and organizations on their social network dynamics for their satisfaction and project success. A hypothesized structural equation model has been tested using AMOS statistical software package.Findings – The analysis highlighted the engagement of the stakeholders within the strategic intents of the project with the public needs and expectations. The model depicts the processes of building social network models based on the capturing of the project’s data in relation to the stakeholders’ communication and satisfaction across the key issues for success in the lifecycle of MTIP.Practical implications – The model is applicable on most MTIP with a diverse stakeholder base and the underlying complexity associated with the community participation and consultation processes. The model will also support wider stakeholder engagement in the planning of MTIP with optimal operationalization and service delivery from a community perspective.Originality/value – The research involves an approach for rationalizing the stakeholder engagement policies of the MTIPs by providing an empirically grounded model simultaneously linking various aspects of stakeholder effective attributes, stakeholder engagement and their relationships to stakeholder satisfaction and project success in MTIPs.
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| 17. |
- Gispert, D. E., et al.
(författare)
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Development of an ontology-based asset information model for predictive maintenance in building facilities
- 2023
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Ingår i: Smart and Sustainable Built Environment. - : Emerald Group Publishing Limited. - 2046-6099 .- 2046-6102.
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Tidskriftsartikel (refereegranskat)abstract
- Purpose: The purpose of this research is to develop a framework of an ontology-based Asset Information Model (AIM) for a Digital Twin (DT) platform and enhance predictive maintenance practices in building facilities that could enable proactive and data-driven decision-making during the Operation and Maintenance (O&M) process. Design/methodology/approach: A scoping literature review was accomplished to establish the theoretical foundation for the current investigation. A study on developing an ontology-based AIM for predictive maintenance in building facilities was conducted. Semi-structured interviews were conducted with industry professionals to gather qualitative data for ontology-based AIM framework validation and insights. Findings: The research findings indicate that while the development of ontology faced challenges in defining missing entities and relations in the context of predictive maintenance, insights gained from the interviews enabled the establishment of a comprehensive framework for ontology-based AIM adoption in the Facility Management (FM) sector. Practical implications: The proposed ontology-based AIM has the potential to enable proactive and data-driven decision-making during the process, optimizing predictive maintenance practices and ultimately enhancing energy efficiency and sustainability in the building industry. Originality/value: The research contributes to a practical guide for ontology development processes and presents a framework of an Ontology-based AIM for a Digital Twin platform.
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| 18. |
- Götz, Christopher Santi, et al.
(författare)
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Exploring applicability, interoperability and integrability of Blockchain-based digital twins for asset life cycle management
- 2022
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Ingår i: Smart and Sustainable Built Environment. - : Emerald Group Publishing Limited. - 2046-6099 .- 2046-6102. ; 11:3, s. 532-558
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Tidskriftsartikel (refereegranskat)abstract
- Purpose – The blockchain-based digital twin has been recognized as a prominent technological ecosystem featuring synergies with both established and emergent information management practice. The purpose of this research is to explore the applicability, interoperability and integrability of a blockchain-based digital twin for asset life cycle management and develop a model of framework which positions the digital twin within a broader context of current management practice and technological availability.Design/methodology/approach – A systematic literature review was performed to map use cases of digital twin, IoT, blockchain and smart contract technologies. Surveys of industry professionals and analyses were conducted focussing on the mapped use cases’ life cycle–centric applicability, interoperability and integrability with current asset life cycle management practice, exploring decision support capabilities and industry insights. Lastly, a model of framework was developed based on the use case, interoperability and integrability findings.Findings – The results support approaching digitization initiatives with blockchain-based digital twins and the positioning of the concept as both a strategic tool and a multifunctional on-field support application. Integrability enablers include progression towards BIM level 3, decentralized program hubs, modular cross-technological platform interfaces, as well as mergeable and scalable blockchains.Practical implications – Knowledge of use cases help highlight the functionality of an integrated technological ecosystem and its connection to comprehensive sets of asset life cycle management aspects. Exploring integrability enablers contribute to the development of management practice and solution development as user expectations and technological prerequisites are interlinked.Originality/value – The research explores asset life cycle management use cases, interoperability and integrability enablers of blockchain-based digital twins and positions the technological ecosystem within current practice and technological availability
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| 19. |
- Hellenborn, Benjamin, et al.
(författare)
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Asset information requirements for blockchain-based digital twins : a data-driven predictive analytics perspective
- 2024
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Ingår i: Smart and Sustainable Built Environment. - : Emerald Group Publishing Limited. - 2046-6099 .- 2046-6102. ; 13:1, s. 22-41
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Tidskriftsartikel (refereegranskat)abstract
- PurposeThe purpose of this study is to identify the key data categories and characteristics defined by asset information requirements (AIR) and how this affects the development and maintenance of an asset information model (AIM) for a blockchain-based digital twin (DT).Design/methodology/approachA mixed-method approach involving qualitative and quantitative analysis was used to gather empirical data through semistructured interviews and a digital questionnaire survey with an emphasis on AIR for blockchain-based DTs from a data-driven predictive analytics perspective.FindingsBased on the analysis of results three key data categories were identified, core data, static operation and maintenance (OM) data, and dynamic OM data, along with the data characteristics required to perform data-driven predictive analytics through artificial intelligence (AI) in a blockchain-based DT platform. The findings also include how the creation and maintenance of an AIM is affected in this context.Practical implicationsThe key data categories and characteristics specified through AIR to support predictive data-driven analytics through AI in a blockchain-based DT will contribute to the development and maintenance of an AIM.Originality/valueThe research explores the process of defining, delivering and maintaining the AIM and the potential use of blockchain technology (BCT) as a facilitator for data trust, integrity and security.
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| 20. |
- Jaryani, S., et al.
(författare)
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Exploring the Fusion of Knowledge Graphs into Cognitive Modular Production
- 2023
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Ingår i: Buildings. - : MDPI. - 2075-5309. ; 13:9
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Tidskriftsartikel (refereegranskat)abstract
- Modular production has been recognized as a pivotal approach for enhancing productivity and cost reduction within the industrialized building industry. In the pursuit of further optimization of production processes, the concept of cognitive modular production (CMP) has been proposed, aiming to integrate digital twins (DTs), artificial intelligence (AI), and Internet of Things (IoT) technologies into modular production systems. This fusion would imbue these systems with perception and decision-making capabilities, enabling autonomous operations. However, the efficacy of this approach critically hinges upon the ability to comprehend the production process and its variations, as well as the utilization of IoT and cognitive functionalities. Knowledge graphs (KGs) represent a type of graph database that organizes data into interconnected nodes (entities) and edges (relationships), thereby providing a visual and intuitive representation of intricate systems. This study seeks to investigate the potential fusion of KGs into CMP to bolster decision-making processes on the production line. Empirical data were collected through a computerized self-administered questionnaire (CSAQ) survey, with a specific emphasis on exploring the potential benefits of incorporating KGs into CMP. The quantitative analysis findings underscore the effectiveness of integrating KGs into CMP, particularly through the utilization of visual representations that depict the relationships between diverse components and subprocesses within a virtual environment. This fusion facilitates the real-time monitoring and control of the physical production process. By harnessing the power of KGs, CMP can attain a comprehensive understanding of the manufacturing process, thereby supporting interoperability and decision-making capabilities within modular production systems in the industrialized building industry.
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| 21. |
- Kor, Mergen, et al.
(författare)
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An investigation for integration of deep learning and digital twins towards Construction 4.0
- 2023
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Ingår i: Smart and Sustainable Built Environment. - : Emerald Group Publishing Limited. - 2046-6099 .- 2046-6102. ; 12:3, s. 461-487
-
Tidskriftsartikel (refereegranskat)abstract
- PurposeThe purpose of this paper is to investigate the potential integration of deep learning (DL) and digital twins (DT), referred to as (DDT), to facilitate Construction 4.0 through an exploratory analysis.Design/methodology/approachA mixed approach involving qualitative and quantitative analysis was applied to collect data from global industry experts via interviews, focus groups and a questionnaire survey, with an emphasis on the practicality and interoperability of DDT with decision-support capabilities for process optimization.FindingsBased on the analysis of results, a conceptual model of the framework has been developed. The research findings validate that DL integrated DT model facilitating Construction 4.0 will incorporate cognitive abilities to detect complex and unpredictable actions and reasoning about dynamic process optimization strategies to support decision-making.Practical implicationsThe DL integrated DT model will establish an interoperable functionality and develop typologies of models described for autonomous real-time interpretation and decision-making support of complex building systems development based on cognitive capabilities of DT.Originality/valueThe research explores how the technologies work collaboratively to integrate data from different environments in real-time through the interplay of the optimization and simulation during planning and construction. The framework model is a step for the next level of DT involving process automation and control towards Construction 4.0 to be implemented for different phases of the project lifecycle (design–planning–construction).
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| 22. |
- Lennartsson, Martin, et al.
(författare)
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Framework for Digital Development in Industrialized Housebuilding
- 2020
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Ingår i: SPS2020. - Amsterdam : IOS Press. - 9781643681467 - 9781643681474 ; , s. 335-345
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Konferensbidrag (refereegranskat)abstract
- Building Information Modelling (BIM) is claimed to transform the Architecture, Engineering and Construction (AEC) industry, whereas current research has argued that diffusion of BIM use proceeds at a slower rate than the optimistic predictions. Despite that potential of BIM is higher in industrialized housebuilding, the trade express similar characteristics as traditional construction both in terms of BIM sue but also organization of assets. The aim of this paper is to present a conceptual framework for digital development in industrialized timber housing. Data were gathered from eight industrialized housebuilding companies in a mixed approach with interviews, focus groups and a survey. The analysis presents the current use of BIM and digital tools and prioritized development areas within this domain. By adding a theoretical overview of current research for industrialized housebuilding with focus on platform strategies and digital development a framework is drawn. Problems with transfer in the interfaces between software were emphasized. Current research on developing a system for Product Lifecycle Management (PLM) in industrialized housebuilding indicate a path forward. A PLM system facilitates the development of digital developments such as digital twins and smart products, which possess the potentials to generate crucial feedback, which is crucial for the competitiveness and efficiency of industrialized housebuilding. Thus, for a trade with high levels of complexity, a move towards a fully functional PLM system might not only be desirable but decisive.
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| 23. |
- Lindholm, Jonatan, et al.
(författare)
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Collaborative digital platform for integrated design and production planning and control : a literature review
- 2023
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Ingår i: Proceedings of the 2023 European Conference on Computing in Construction and the 40th International CIB W78 Conference. - : European Council on Computing in Construction. - 9780701702731
-
Konferensbidrag (refereegranskat)abstract
- There is a lack of a cohesive, integrated approach to design and production planning and control, where real-time data can be captured to support various management functions in an interconnected autonomous platform for collaboration. This paper presents a systematic literature review on collaborative digital platforms for BIM-based projects to facilitate synchronous updates of workflows based on real-time project data. The results show that a combined model, including Knowledge Graphs, Common Data Environments, and Digital Twins have potential to support a fully integrated, automated system. Future studies should therefore investigate how to connect these technologies together in an integrated project platform.
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| 24. |
- Movaffaghi, H., et al.
(författare)
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Case study III : Designing sustainable timber–concrete composite floor system
- 2024
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Ingår i: Materials Selection for Sustainability in the Built Environment. - : Elsevier. - 9780323951227 ; , s. 407-418
-
Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- A case study has been chosen to impart a better understanding of the sustainable multicriteria decision-making (MCDM) approach for the selection of sustainable construction materials described in Chapter 4. The timber–concrete composite (TCC) floor system is a competent floor system that can take full advantage of the mechanical properties of both concrete and timber. Designing sustainable TCC floors involves several conflicting design criteria that must be considered simultaneously. The case study demonstrates an MCDM approach for weighting and ranking alternative TCC floors at the design stage. To set the criteria weights, a short survey was conducted on technical and production managers at industrialized house-building companies in both the Swedish and European markets. According to the MCDM results, the TCC floor with a 7.3m span length belonging to comfort class A has the highest ranking and was chosen for the detail design stage as the results of the case study.
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| 25. |
- Movaffaghi, Hamid, et al.
(författare)
-
Case study III: Designing sustainable timber–concrete composite floor system
- 2024
-
Ingår i: Materials Selection for Sustainability in the Built Environment. - : Elsevier. - 9780323951227 ; , s. 407-418
-
Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- A case study has been chosen to impart a better understanding of the sustainable multicriteria decision-making (MCDM) approach for the selection of sustainable construction materials described in Chapter 4. The timber–concrete composite (TCC) floor system is a competent floor system that can take full advantage of the mechanical properties of both concrete and timber. Designing sustainable TCC floors involves several conflicting design criteria that must be considered simultaneously. The case study demonstrates an MCDM approach for weighting and ranking alternative TCC floors at the design stage. To set the criteria weights, a short survey was conducted on technical and production managers at industrialized house-building companies in both the Swedish and European markets. According to the MCDM results, the TCC floor with a 7.3 m span length belonging to comfort class A has the highest ranking and was chosen for the detail design stage as the results of the case study.
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| 26. |
- Movaffaghi, Hamid, et al.
(författare)
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Developing a framework of a multi-objective and multi-criteria based approach for integration of LCA-LCC and dynamic analysis in industrialized multi-storey timber construction
- 2018
-
Ingår i: Advances in Informatics and Computing in Civiland Construction Engineering. - Cham, Switzerland : Springer. - 9783030002190 - 9783030002206 ; , s. 447-454
-
Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- To improve organizational decision-making process in construction industry, a framework of a multi-objective andmulti-criteria based approach has been developed to integrate results from Life-Cycle Analysis (LCA), Life-Cycle CostAnalysis (LCC) and dynamic analysis for multi-storey industrialized timber structure. Two Building InformationModelling (BIM)-based 3D structural models based on different horizontal stabilization and floor systems will beanalyzed to reduce both climate impact, material and production costs and enhance structural dynamic response of thefloor system. Moreover, sensitivity of the optimal design will also be analyzed to validate the design. The multi-objectiveand multi-criteria based LCA-LCC framework analyzing the environmental, economic, and dynamic performances willsupport decision making for different design in the early phases of a project, where various alternatives can be created andevaluated. The proposed integrated model may become a promising tool for the building designers and decision makers inindustrialized timber construction.
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| 27. |
- Movaffaghi, Hamid, et al.
(författare)
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Framework for Dynamic Circular Economy in the Building Industry : Integration of Blockchain Technology and Multi-Criteria Decision-Making Approach
- 2023
-
Ingår i: Sustainability. - 2071-1050. ; 15:22
-
Tidskriftsartikel (refereegranskat)abstract
- The building industry is one of the most resource-intensive sectors in industrialized countries, requiring a shift from a linear to a more sustainable circular economic model. Nevertheless, there are several major challenges, such as the management of information regarding used materials and products, the lack of cross-sector documentation tools, and sales operations for implementing a dynamic circular economy in the building industry. To overcome these challenges, blockchain technology for documentation, tracing used materials and products, and the use of multi-criteria decision-making approaches for the ranking and selection of optimal used materials and products have emerged as crucial facilitators, with the potential to address the technological, organizational, environmental, and economic requirements. The purpose of this study is to develop a theoretical framework of a digital platform ecosystem for implementing a dynamic circular economy in the building industry through the integration of blockchain technology and a multi-criteria decision-making approach built upon their synergy. The priority order of two alternatives of used materials and products was determined according to the AHP method, leading to selection of the most sustainable alternative. This research study contributes to dynamic circular economies by (1) facilitating cross-sector information transparency and the tracing of used materials and products from their sources to their end-of-life stages and through (2) the ranking and selection of used materials and products based on their overall properties.
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| 28. |
- Movaffaghi, Hamid, et al.
(författare)
-
Importance of decision-making in building materials selection
- 2024
-
Ingår i: Materials Selection for Sustainability in the Built Environment. - : Elsevier. - 9780323951227 ; , s. 71-85
-
Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- The demand for a sustainable built environment is no longer a matter of personal choice, and sustainability performances need to be integrated within all activities in the construction projects. Growing performance objectives, including sustainability with several conflicting performance criteria, impose the application of tools based on a multicriteria decision-making (MCDM) approach for ranking and selecting sustainable building materials to consider all performance criteria simultaneously. Because both weights of criteria and sensitivity of decisions significantly influence the outcome of the decision-making process, it is important to pay particular attention to both the consistency of judgments by the experts in the field and sensitivity analysis. MCDM approach must allow interfacing with other engineering tools to evaluate performance metrics. This chapter examines the process of ranking and selecting sustainable building materials using the MCDM approach and illustrates how sustainability performance can be integrated into the materials selection process for construction projects.
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| 29. |
- Movaffaghi, H., et al.
(författare)
-
Importance of decision-making in building materials selection
- 2024
-
Ingår i: Materials Selection for Sustainability in the Built Environment. - : Elsevier. - 9780323951227 ; , s. 71-85
-
Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- The demand for a sustainable built environment is no longer a matter of personal choice, and sustainability performances need to be integrated within all activities in the construction projects. Growing performance objectives, including sustainability with several conflicting performance criteria, impose the application of tools based on a multicriteria decision-making (MCDM) approach for ranking and selecting sustainable building materials to consider all performance criteria simultaneously. Because both weights of criteria and sensitivity of decisions significantly influence the outcome of the decision-making process, it is important to pay particular attention to both the consistency of judgments by the experts in the field and sensitivity analysis. MCDM approach must allow interfacing with other engineering tools to evaluate performance metrics. This chapter examines the process of ranking and selecting sustainable building materials using the MCDM approach and illustrates how sustainability performance can be integrated into the materials selection process for construction projects.
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| 30. |
- Movaffaghi, Hamid, et al.
(författare)
-
Large Span Timber Buildings Under Horizontal Forces
- 2019
-
Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- In timber concrete composite (TCC) floor systems the concrete contributes to increase of the stiffness and research is ongoing to develop large span TCC floor systems with less supporting walls to create both modular flexibility and wide-open spaces. Nevertheless, removing supporting walls can degrade structural performance against horizontal forces (Ferdous, et al., 2019). Meanwhile both the height of the structure and the type of floor diaphragm (rigid or flexible) has influence on the magnitude of the lateral loads transferred to the supporting shear walls. This is a challenge, not least when prefabricated elements are used; the individual elements have to be connected to form a continuous floor diaphragm. The main aim of this paper is to study lateral load transferred to the shear walls through the TCC floor with both rigid and/or flexible diaphragms in low and medium-rise timber buildings. The focal point of the study is the analysis and design of floor elements and connection systems connecting the TCC floor elements to each other as well as to the adjoining structure. The case studies for low and medium-rise timber structures have been analyzed both using finite element modelling and analytical methods based on both deep beam theory and beam or diaphragm actions depending on the height of the structure. The results in this study indicate that the magnitude of load transferred to the shear walls depends on both the height of the structure and the type of floor diaphragms. The structural performance in terms of stability can be enhanced by effective use of connection systems of TCC floor elements.
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| 31. |
- Movaffaghi, Hamid, et al.
(författare)
-
Multi-criteria decision analysis of timber–concrete composite floor systems in multi-storey wooden buildings
- 2021
-
Ingår i: Civil engineering and environmental systems (Print). - : Taylor & Francis. - 1028-6608 .- 1029-0249. ; , s. 1-15
-
Tidskriftsartikel (refereegranskat)abstract
- This study aims to present a multi-criteria decision analysis (MCDA) for comprehensive performance evaluation of the alternative design of timber–concrete composite (TCC) floor system. Considered objectives are serviceability and sustainability performance with associated criterion as (1) comfort class regarding springiness and vibrations, (2) architectural quality with associated criterion as open spaces, (3) environmental aspect with associated criterion as CO2 emissions and (4) cost aspect with associated criterion as the total costs. Analytical Hierarchy Process (AHP) and Complex Proportional Assessment (COPRAS) as the methods in the multi-criteria analysis have been combined for (1) determining the weighting of criteria based on the survey results, (2) verifying the consistency ratio of decision matrix made by experts and (3) for ranking and selecting the optimal concept design among design candidates. According to the results, the TCC floor with the span length of 7.3 m belonging to comfort class A has got the highest ranking. However, sensitivity analysis indicates that the TCC floor with a 9.0 m span length belonging to comfort class A shall be selected as the optimal concept design. The study contributes by developing a complete concept design tool for TCC floor systems using AHP combined COPRAS methods to handle both beneficial and non-beneficial criteria.
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| 32. |
- Movaffaghi, Hamid, et al.
(författare)
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Multi-Objective and Multi-Criteria Approach for Value-Driven Design in Industrialized Residential Multi-Storey Timber-Building
- 2019
-
Ingår i: Computational Methods in Wood Mechanics – from Material Properties to Timber Structures.. - Växjö. - 9789188898647
-
Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Serviceability in terms of springiness, vibration and deflection [1], as well as sustainability in terms of climate impact and costs [2] have been identified as the most important aspects for appropriate functioning in residential multi-storey timber-buildings. Thus, the aim of this study is focused on product development of a timber-concrete composite (TCC) floor system by 1) enhancing serviceability performances of the floor for larger spans (above 6 m) in terms of stiffness and dynamic response, and 2) reducing both climate impact (CO2-emissions) and costs, by optimizing material usage. As the case study a timber structure of a residential multi-storey building, including concrete ground floor and shaft, with the overall dimensions ܮൈܹൈܪൌ30ൈ11ൈ14 ሾ݉ଷሿ has been studied. The geometry of the load bearing structural elements has been modelled using finite element programs. As serviceability criteria for the floors, the deflection due to a point load was chosen. The deflections were related to comfort classes given in [3] and transverse load distribution was taken into account according to [4]. The deflection and effective bending stiffness (EIef in EC5 Annex B) were chosen as objective functions, while thickness of concrete slab and shear stiffness of the connection between glulam beam and concrete slab were chosen as design variables in a multi-objective optimization. The relationship between connection stiffness and height of the concrete slab for comfort class B can be seen in Figure 1. In the figure the cross-section of the TCC floor structure, with a span of 7.5 m, is also depicted. Figure 1: Connection stiffness-concrete thickness relationship and cross-section for the TCC floor. After optimization, a multi-criteria analysis was applied to select a design solution from the Pareto optimal front, satisfying some subjective preferences of the stakeholders for value-driven design. The results in this study integrates serviceability, environmental and economic performances for value-driven design and supports decision making in the early phases of a project, where various alternatives can be analyzed and evaluated.
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| 33. |
- Movaffaghi, Hamid, et al.
(författare)
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Value-driven design approach for optimal long-span timber-concrete composite floor in multi-storey wooden residential buildings
- 2020
-
Ingår i: Civil engineering and environmental systems (Print). - : Taylor & Francis. - 1028-6608 .- 1029-0249. ; 37:3, s. 100-116
-
Tidskriftsartikel (refereegranskat)abstract
- Long-span timber-concrete composite (TCC) floor systems have the potential to address the design challenges for conventional wooden floors in residential multi-storey timber frame buildings. The aim of this paper is to develop a design approach for long-span timber-concrete composite floor system of 6-9 m. A framework based on value-driven design approach has been developed for integration of results from graphical multi-objective optimisation, spreadsheet-based analysis, structural static and dynamic finite element analysis, and multi-criteria decision making. To verify the developed framework, a residential five-storey timber frame building as a case study has been studied. Optimal design includes optimised thickness of the concrete and optimised smeared stiffness of connectors for three different comfort classes A to C in descending order. TCC floor with span length 7.3 [m] belonging to comfort class A and TCC floor with span length 9.0 [m] belonging to comfort class C has been chosen as optimal solutions. The results indicate that proposed and innovative design approach is a promising tool for developers, architects and structural engineers when designing optimal long-span timber-concrete composite floor system.
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| 34. |
- Muhammad, Abbas Ahmad, et al.
(författare)
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Adoption of Virtual Reality (VR) for Site Layout Optimization of Construction Projects
- 2020
-
Ingår i: Teknik Dergi. - : TüRk MüHendi̇S Ve Mi̇Mar Odalari Bi̇Rli̇ğİ. - 1300-3453. ; 31:2
-
Tidskriftsartikel (refereegranskat)abstract
- Among the significant tasks of construction site management, site layout planning is a crucial activity which leads to project success. Currently the concept of an optimized construction site layout emerge as a result of executing tools and techniques that construction project management discipline provides. Despite the plentiful existence of site layout techniques, the authors of this paper believe that incorporation of Virtual Reality (VR) for jobsite organization is a valuable and modern management phenomenon for optimal planning of the site layout planning. Therefore, the purpose of this paper is to assess traditional practices for site layout planning and introduce the application of VR in construction jobsite organizations involving site layout planning, collision detection and evaluation of construction site layout scenarios. In this paper, two different construction jobsite scenarios for the structural phase of the building construction are created and for optimization purposes implemented through the 3D model developed are on Autodesk Revit software, SketchUp and Lumion. VR box headset is used for testing purposes of the proposed 3D jobsite organization model. A descriptive case study is examined in order to describe the proposed organizational plan for the created scenarios. In this research, questionnaire survey is chosen as one of the research instrument for data collection and evaluation purposes. Results presented in this paper, provide industry professionals with a better understanding of the benefits, advantages and how VR technology improves the effectiveness of jobsite layout planning compared to traditional practices.
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| 35. |
- Ozturk, Gozde Basak, et al.
(författare)
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Conceptual Model of Building Information Modeling Usage for Knowledge Management in Construction Projects
- 2019
-
Ingår i: IOP Conf. Series: Materials Science and Engineering. - : Institute of Physics Publishing (IOPP). ; , s. 1-11
-
Konferensbidrag (refereegranskat)abstract
- Knowledge management (KM) draws on a vital role in highly participatory and diversified working environment of construction projects. Knowledge keeps construction firms competitive and boosts performance high in future work. However, large and chaotic projects require KM achieved with technological support thorough the project life cycle. Building information modelling (BIM) has a wide range of interaction between researchers and practitioners as a new and promising area of technological research and implementation in construction. In the last decade, many researchers worked on the use of BIM in the construction industry. Collaborative interaction is one of the most important promises of BIM. Collaboration between construction professionals can be improved by firmly managed project knowledge. With BIM solutions, it can be easier to externalize, integrate, internalize and socialize knowledge. Operational knowledge and strategic knowledge can be managed through interactive BIM models. This study aims suggesting a conceptual model representing KM process through BIM. A comprehensive literature review on KM and BIM was established to construct the theoretical framework for the assignment of a conceptual model for BIM usage in KM process of construction projects. The proposed conceptual model is a road map for adapting KM process with BIM as a new KM tool. The ability of BIM to manage knowledge is determined. KM process is identified for construction projects. Existing process is reviewed and modified for the BIM usage. In future studies, empirical research will be conducted to strengthen the validation of the proposed model.
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| 36. |
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| 37. |
- Papadonikolaki, Eleni, et al.
(författare)
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Blockchain innovation ecosystems orchestration in construction
- 2023
-
Ingår i: Industrial management & data systems. - : Emerald Group Publishing Limited. - 0263-5577 .- 1758-5783. ; 123:2, s. 672-694
-
Tidskriftsartikel (refereegranskat)abstract
- Purpose: Rapid advancements in blockchain technology transform various sectors, attracting the attention of industrialists, practitioners, policymakers and academics, and profoundly affect construction businesses through smart contracts and crypto-economics. This paper explores the blockchain innovation ecosystem in construction.Design/methodology/approach: Through a qualitative study of 23 diverse interviewees, the study explores how open or closed the blockchain innovation ecosystem in construction is and who its emerging orchestrators are.Findings: The data showed that construction aims towards an open innovation blockchain ecosystem, although there are elements of hybridisation and closedness, each system pointing out to different orchestrators.Practical implications: The study has implications for governments and large companies in construction, showing that open innovation initiatives need to be encouraged by policymakers through rules, regulations and government-sponsored demonstrator projects.Social implications: The data showed that there is lack of readiness for business model change to support open innovation blockchain ecosystems in construction.Originality/value: This is the first study applying the open innovation theory in the construction industry and sheds light into the phenomenon of blockchain, suggesting routes for further democratisation of the technology for policymakers and practitioners.
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| 38. |
- Papadonikolaki, Eleni, et al.
(författare)
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Blockchain innovation ecosystems orchestration in construction
- 2023
-
Ingår i: Industrial management & data systems. - : Emerald. - 0263-5577 .- 1758-5783. ; 123:2, s. 672-694
-
Tidskriftsartikel (refereegranskat)abstract
- Purpose: Rapid advancements in blockchain technology transform various sectors, attracting the attention of industrialists, practitioners, policymakers and academics, and profoundly affect construction businesses through smart contracts and crypto-economics. This paper explores the blockchain innovation ecosystem in construction. Design/methodology/approach: Through a qualitative study of 23 diverse interviewees, the study explores how open or closed the blockchain innovation ecosystem in construction is and who its emerging orchestrators are. Findings: The data showed that construction aims towards an open innovation blockchain ecosystem, although there are elements of hybridisation and closedness, each system pointing out to different orchestrators. Practical implications: The study has implications for governments and large companies in construction, showing that open innovation initiatives need to be encouraged by policymakers through rules, regulations and government-sponsored demonstrator projects. Social implications: The data showed that there is lack of readiness for business model change to support open innovation blockchain ecosystems in construction. Originality/value: This is the first study applying the open innovation theory in the construction industry and sheds light into the phenomenon of blockchain, suggesting routes for further democratisation of the technology for policymakers and practitioners.
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| 39. |
- Sadri, Habib, et al.
(författare)
-
A Conceptual Framework For Blockchain and Ai-Driven Digital Twins For Predictive Operation and Maintenance
- 2023
-
Ingår i: Proceedings of the 2023 European Conference on Computing in Construction and the 40th International CIB W78 Conference. - : European Council on Computing in Construction (EC3).
-
Konferensbidrag (refereegranskat)abstract
- Digital Twins (DTs), enriched with Artificial Intelligence (AI) and Blockchain technology, promise a revolutionary breakthrough in smart asset management and predictive maintenance in the built environment. This study aims to portray a conceptual framework of Blockchain and AIbased DTs and outline its key characteristics, requirements, and system architecture by composing a functional model using IDEF0. Such an approach is expected to enhance predictive maintenance in building facilities, simplify the management and operation of smart built environments, and ultimately deliver valuable outcomes for facility operators, real estate practitioners, and end-users.
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| 40. |
- Sadri, Habib, et al.
(författare)
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Integration of Blockchain and Digital Twins in the Smart Built Environment Adopting Disruptive Technologies—A Systematic Review
- 2023
-
Ingår i: Sustainability. - : MDPI. - 2071-1050. ; 15:4
-
Forskningsöversikt (refereegranskat)abstract
- The integration of blockchain and digital twins (DT) for better building-lifecycle data management has recently received much attention from researchers in the field. In this respect, the adoption of enabling technologies such as artificial intelligence (AI) and machine learning (ML), the Internet of Things (IoT), cloud and edge computing, Big Data analytics, etc., has also been investigated in an abundance of studies. The present review inspects the recent studies to shed light on the foremost among those enabling technologies and their scope, challenges, and integration potential. To this end, 86 scientific papers, recognized and retrieved from the Scopus and Web of Science databases, were reviewed and a thorough bibliometric analysis was performed on them. The obtained results demonstrate the nascency of the research in this field and the necessity of further implementation of practical methods to discover and prove the real potential of these technologies and their fusion. It was also found that the integration of these technologies can be beneficial for addressing the implementation challenges they face individually. In the end, an abstract descriptive model is presented to provide a better understanding of how the technologies can become integrated into a unified system for smartening the built environment.
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| 41. |
- Sadri, Habib, et al.
(författare)
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Towards the implications of Boverket's climate declaration act for sustainability indices in the Swedish construction industry
- 2022
-
Ingår i: Building and Environment. - : Elsevier. - 0360-1323 .- 1873-684X. ; 207 A
-
Tidskriftsartikel (refereegranskat)abstract
- Regulatory uncertainty is typically the inevitable consequence of introducing new regulations or even changing the old ones by the state agencies that interacts with the normative structures in the society. This study seeks to shed light on this relational impact in the Swedish construction industry by examining the managers' impression of the recently introduced Climate Declaration act by Boverket. Based on the results of a survey of the industry executives' opinions, it was established that the desired impacts of the regulative measures will require application of binding levers, whether as incentives or deterrents, the lack of which is evident in Boverket's Climate Declaration act. The main notion of the respondents was that the ultimate outcome of such regulations should be to lead the industry towards the selection of products and processes that produce less carbon dioxide over the whole life cycle and actualize a circular economy. The findings also acknowledge that the effectiveness of the Climate Declaration act will appear in the long run and this convention needs to be reviewed and amended over several stages to result in the expected payoffs.
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| 42. |
- Sadrinooshabadi, Seyedhabibollah, et al.
(författare)
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Requirement management in a life cycle perspective based on ISO 19650-1 and CoClass as the new classification system in Sweden
- 2021
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Ingår i: Engineering Construction and Architectural Management. - : Emerald Group Publishing Limited. - 0969-9988 .- 1365-232X. ; 28:9, s. 2736-2753
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Tidskriftsartikel (refereegranskat)abstract
- Purpose – Each building project demands an integrated method for information and requirement management in its life cycle. The main purpose of this paper is to explore the major obstacles in integrated life cycle information management and recognize the potentials of CoClass as the new Swedish digital classification system to tackle them throughout asset life cycle.Design/methodology/approach – The industry viewpoint toward the current status of asset information management considering ISO 19650-1 principles and the existing obstacles and the industry practitioners’ ideas regarding CoClass capabilities and applicability were captured and analyzed. A total of 13 semistructured interviews were conducted with the AECO industry professionals to have an understanding of information requirement management. Then the results were analyzed qualitatively, using the NVivo 12 software. Different attributes of a component (heating panel) in a meeting room according to CoClass and data deviations throughout the asset life cycle were elaborated.Findings – This study reveals some obstacles in information management process in seven categories in relation to: (1) the need to employ information exchange platforms as common data environments (CDEs) by all actors from early stages; (2) the communication issues caused by lack of utilizing common languages; (3) the costly and time-consuming implementation process; (4) the misunderstandings in terms of data communication between service providers and owners; (5) the definition and fulfillment of information requirements as well as keeping track of data deviations throughout asset life cycle; (6) the information update difficulty; and (7) the need for training practitioners dealing with new systems such as CoClass.Originality/value – The research explores the major obstacles in information requirement management concerning the practical implementation of the new Swedish classification system, CoClass, supporting the asset life cycle.
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| 43. |
- Tagliabue, L. C., et al.
(författare)
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Special Issue Cognitive Buildings
- 2022
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Ingår i: Applied Sciences. - : MDPI. - 2076-3417. ; 12:5
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Cognitive building is a pioneering topic to envision the future of our built environment [...]
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| 44. |
- Tavakoli, Peiman, et al.
(författare)
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Blockchain-based digital twin data provenance for predictive asset management in building facilities
- 2024
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Ingår i: Smart and Sustainable Built Environment. - : Emerald Group Publishing Limited. - 2046-6099 .- 2046-6102. ; 13:1, s. 4-21
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Tidskriftsartikel (refereegranskat)abstract
- Purpose: The purpose of this study is to focus on structured data provision and asset information model maintenance and develop a data provenance model on a blockchain-based digital twin smart and sustainable built environment (DT) for predictive asset management (PAM) in building facilities.Design/methodology/approach: Qualitative research data were collected through a comprehensive scoping review of secondary sources. Additionally, primary data were gathered through interviews with industry specialists. The analysis of the data served as the basis for developing blockchain-based DT data provenance models and scenarios. A case study involving a conference room in an office building in Stockholm was conducted to assess the proposed data provenance model. The implementation utilized the Remix Ethereum platform and Sepolia testnet.Findings: Based on the analysis of results, a data provenance model on blockchain-based DT which ensures the reliability and trustworthiness of data used in PAM processes was developed. This was achieved by providing a transparent and immutable record of data origin, ownership and lineage.Practical implications: The proposed model enables decentralized applications (DApps) to publish real-time data obtained from dynamic operations and maintenance processes, enhancing the reliability and effectiveness of data for PAM.Originality/value: The research presents a data provenance model on a blockchain-based DT, specifically tailored to PAM in building facilities. The proposed model enhances decision-making processes related to PAM by ensuring data reliability and trustworthiness and providing valuable insights for specialists and stakeholders interested in the application of blockchain technology in asset management and data provenance.
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| 45. |
- Tezel, A., et al.
(författare)
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Blockchain Opportunities and Issues in the Built Environment : Perspectives on Trust, Transparency and Cybersecurity
- 2022
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Ingår i: Industry 4.0 for the Built Environment. - Cham : Springer. - 9783030824297 - 9783030824303 ; , s. 569-588
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Bokkapitel (refereegranskat)abstract
- Blockchain as a form of distributed ledger enabling the renowned cryptocurrency Bitcoin has been in the spotlight since the late 2000s. The early discussions on its practical implementation were conducted mainly for the banking and finance industries with a promising narrative. Alongside the recent surge in the interest for the technology for a wide-range of possible applications such as smart contracts, crypto-assets, tokenization, secure transaction recording, peer-to-peer (P2P) trade, and transparent governance, its potential for the Built Environment (BE) has started to come more frequently into question. These discussions often contain a tone of caution, nevertheless, hinting the challenges for the technology in the BE context. This chapter is aimed at summarizing those opportunities and challenges for blockchain in the BE with a particular emphasis on its potential influence on trust, transparency and cybersecurity. Directions of future research are also provided contributing to the cyber-physical convergence in Construction 4.0.
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| 46. |
- Tezel, Algan, et al.
(författare)
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Preparing Construction Supply Chains for Blockchain : An Exploratory Analysis
- 2019
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Ingår i: Proceedings of the CIB World Building Congress 'Constructing Smart Cities'. International Council for Research and Innovation in Building and Construction (CIB): Hong Kong, China.
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Konferensbidrag (refereegranskat)abstract
- Blockchain, a peer-to-peer controlled, distributed database structure, has the potential to profoundly affect the current business transactions in the construction industry through smart contracts, cryptocurrencies, and reliable asset tracking. The construction industry has often been criticized for being slow in embracing emerging technologies and not effectively diffusing those technologies through its supply chains. Often, the extensive fragmentation, traditional procurement structures, destructive competition, lack of collaboration and transparency, low-profit margins and human resources are shown as the main culprits for this. As Blockchain makes its presence felt strongly in many other industries like finance and banking, this paper investigates how to prepare construction supply chains for Blockchain technology through an explorative analysis. Empirical data for the study were collected through semi-structured interviews with 17 subject experts. Alongside presenting a SWOT (strengths, weaknesses opportunities, threats) analysis, the paper exhibits the requirements for and steps toward a construction supply structure facilitated by Blockchain.
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| 47. |
- Tezel, Algan, et al.
(författare)
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Preparing construction supply chains for blockchain technology: An investigation of its potential and future directions
- 2020
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Ingår i: Frontiers of Engineering Management. - : Springer. - 2095-7513 .- 2096-0255. ; 7, s. 547-563
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Tidskriftsartikel (refereegranskat)abstract
- Blockchain, a peer-to-peer, controlled, distributed database structure, has the potential to profoundly affect current business transactions in the construction industry through smart contracts, cryptocurrencies, and reliable asset tracking. The construction industry is often criticized for being slow in embracing emerging technologies and not effectively diffusing them through its supply chains. Often, the extensive fragmentation, traditional procurement structures, destructive competition, lack of collaboration and transparency, low-profit margins, and human resources are shown as the main culprits for this. As blockchain technology makes its presence felt strongly in many other industries like finance and banking, this study investigates the preparation of construction supply chains for blockchain technology through an explorative analysis. Empirical data for the study were collected through semi-structured interviews with 17 subject experts. Alongside presenting a strengths, weaknesses, opportunities, and threats analysis (SWOT), the study exhibits the requirements for and steps toward a construction supply structure facilitated by blockchain technology
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| 48. |
- Yitmen, Ibrahim, et al.
(författare)
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AI-Driven Digital Twins for Predictive Operation and Maintenance in Building Facilities
- 2023
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Ingår i: Cognitive Digital Twins for Smart Lifecycle Management of Built Environment and Infrastructure. - : CRC Press. - 9781003230199 ; , s. 65-78
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Bokkapitel (refereegranskat)abstract
- By virtue of Artificial Intelligence (AI) and Machine Learning (ML) techniques, integrated with building Digital Twins (DTs), predictive maintenance plays a highly beneficial role in smart asset operation in the built environment. Therefore, this chapter attempts to portray a conceptual framework of AI-based DTs, illustrating how real-time data can be gathered from the building facilities and processed to optimize their operation and maintenance plan. To this end, different enabling and supporting technologies as well as the constituting component of the framework are elaborated. Putting such a framework into practice can enhance the maintenance activities in various types of building facilities such as mechanical and electrical installations, lighting, security, and HVAC systems in order for indoor quality improvement, energy optimization, and cost reduction.
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| 49. |
- Yitmen, Ibrahim, et al.
(författare)
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An Adapted Model of Cognitive Digital Twins for Building Lifecycle Management
- 2021
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Ingår i: Applied Sciences. - : MDPI. - 2076-3417. ; 11:9
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Tidskriftsartikel (refereegranskat)abstract
- In the digital transformation era in the Architecture, Engineering, and Construction (AEC) industry, Cognitive Digital Twins (CDT) are introduced as part of the next level of process automation and control towards Construction 4.0. CDT incorporates cognitive abilities to detect complex and unpredictable actions and reason about dynamic process optimization strategies to support decision-making in building lifecycle management (BLM). Nevertheless, there is a lack of understanding of the real impact of CDT integration, Machine Learning (ML), Cyber-Physical Systems (CPS), Big Data, Artificial Intelligence (AI), and Internet of Things (IoT), all connected to self-learning hybrid models with proactive cognitive capabilities for different phases of the building asset lifecycle. This study investigates the applicability, interoperability, and integrability of an adapted model of CDT for BLM to identify and close this gap. Surveys of industry experts were performed focusing on life cycle-centric applicability, interoperability, and the CDT model’s integration in practice besides decision support capabilities and AEC industry insights. The evaluation of the adapted model of CDT model support approaching the development of CDT for process optimization and decision-making purposes, as well as integrability enablers confirms progression towards Construction 4.0.
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| 50. |
- Yitmen, Ibrahim, et al.
(författare)
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ANP model for evaluating the performance of adaptive façade systems in complex commercial buildings
- 2022
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Ingår i: Engineering Construction and Architectural Management. - : Emerald Group Publishing Limited. - 0969-9988 .- 1365-232X. ; 29:1, s. 431-455
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Tidskriftsartikel (refereegranskat)abstract
- PurposeDecisions taken during the early design of adaptive façades involving kinetic, active and responsive envelope for complex commercial buildings have a substantial effect on inclusive building functioning and the comfort level of inhabitants. This study aims to present the application of an analytic network process (ANP) model indicating the order of priority for high performance criteria that must be taken into account in the assessment of the performance of adaptive façade systems for complex commercial buildings.Design/methodology/approachThe nominal group technique (NGT) stimulating and refining group judgments are used to find and categorize relevant high performance attributes of the adaptive façade systems and their relative pair-wise significance scores. An ANP model is applied to prioritize these high performance objectives and criteria for the adaptive façade systems.FindingsEmbodied energy and CO2 emission, sustainability, energy saving, daylight and operation maintenance were as the most likely and crucial high performance criteria. The criteria and the weights presented in this study could be used as guidelines for evaluating the performance of adaptive façade systems for commercial buildings in planning and design phases.Practical implicationsThis research primarily provides the required actions and evaluations for design managers in accomplishing a high performance adaptive façade system, with the support of an ANP method. Before beginning the adaptive façade system of a building design process, the design manager must determine the significance of each of these attributes as high performance primacies will affect the results all through the entire design process.Originality/valueIn this research, a relatively innovative, systematic and practical approach is proposed to sustain the decision-making procedure for evaluation of the high performance criteria of adaptive façade systems in complex commercial buildings.
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